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| 西藏蒙亚啊铅锌矿床S、Pb同位素组成及对成矿物质来源的示踪 | |
| 引用本文： | 王立强,顾雪祥,程文斌,唐菊兴,钟康惠,刘晓吉. 西藏蒙亚啊铅锌矿床S、Pb同位素组成及对成矿物质来源的示踪[J]. 现代地质, 2010, 24(1) |
| 作者姓名： | 王立强 顾雪祥 程文斌 唐菊兴 钟康惠 刘晓吉 |
| 作者单位： | 1. 中国地质大学,地质过程与矿产资源国家重点实验室,北京,100083 2. 中国地质科学院,矿产资源研究所,北京,100037 3. 成都理工大学,地球科学学院,四川,成都,610059 |
| 基金项目： | 国家科技支撑项目，中国地质调查局青藏高原专项 |
| 摘 要： | 西藏蒙亚啊铅锌矿床位于冈底斯成矿带东段,矿体主要赋存于上石炭统—下二叠统来姑组碳酸盐岩内的矽卡岩和矽卡岩化大理岩中,近东西向似层状产出。在分析该矿床成矿地质条件的基础上,系统地研究了矿石硫、铅同位素组成特征,探讨了成矿物质来源。研究表明,矿石硫化物的硫同位素组成变化范围较窄,具塔式分布效应,估算得到成矿热液系统的总硫同位素值3δ4S∑S约为5.2‰,具有岩浆硫的特征;矿石铅同位素组成稳定,为正常普通铅,矿石铅来源于早白垩世上地壳物质部分熔融形成的岩浆。 |
| 关 键 词： | 同位素组成 成矿物质来源 冈底斯成矿带 蒙亚啊铅锌矿床 西藏 |
Sulfur and Lead Isotope Composition and Tracing for the Sources of Ore-Forming Materials in the Mengya'a Pb-Zn Deposit,Tibet |
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| WANG Li-qiang,GU Xue-xiang,CHENG Wen-bin,TANG Ju-xing,ZHONG Kang-hui,LIU Xiao-ji. Sulfur and Lead Isotope Composition and Tracing for the Sources of Ore-Forming Materials in the Mengya'a Pb-Zn Deposit,Tibet[J]. Geoscience of Geosciences, 2010, 24(1) | |
| Authors: | WANG Li-qiang GU Xue-xiang CHENG Wen-bin TANG Ju-xing ZHONG Kang-hui LIU Xiao-ji |
| Affiliation: | WANG Li-qiang1,GU Xue-xiang1,CHENG Wen-bin1,TANG Ju-xing2,ZHONG Kang-hui3,LIU Xiao-ji1(1.State Key Laboratory of Geological Processes , Mineral Resources,China University of Geosciences,Beijing 100083,China,2.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,3.College of Earth Sciences,Chengdu University of Technology,Chengdu,Sichuan 610059,China) |
| Abstract: | The Mengya'a lead-zinc deposit in Tibet is located in the eastern section of Gangdise metallogenic belt.The ore body mainly occurs as stratoid form in the skarn and skarnization marble of the Middle Carboniferous-Upper Permian Laigu Formation,distributed nearly E-W direction.Based on analysis of the ore-forming geological conditions,this paper studies systematically the composition characteristics of S,Pb isotopes in the ore and discusses the sources of the ore-forming materials.Studies have shown that the ... |
| Keywords: | isotopic composition sources of ore-forming material Gangdise metallogenic belt Mengya'a Pb-Zn deposit Tibet |
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